CN114562529A - Disk brake for rail vehicles - Google Patents

Disk brake for rail vehicles Download PDF

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Publication number
CN114562529A
CN114562529A CN202111413264.6A CN202111413264A CN114562529A CN 114562529 A CN114562529 A CN 114562529A CN 202111413264 A CN202111413264 A CN 202111413264A CN 114562529 A CN114562529 A CN 114562529A
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CN
China
Prior art keywords
brake
friction
disc
friction elements
disc brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111413264.6A
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Chinese (zh)
Inventor
维托里奥·德索乔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cofren SRL
Original Assignee
Cofren SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cofren SRL filed Critical Cofren SRL
Publication of CN114562529A publication Critical patent/CN114562529A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/025—Compositions based on an organic binder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/025—Compositions based on an organic binder
    • F16D69/026—Compositions based on an organic binder containing fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/027—Compositions based on metals or inorganic oxides
    • F16D69/028—Compositions based on metals or inorganic oxides containing fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/002—Combination of different friction materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0008—Ferro
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0026—Non-ferro
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0052—Carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention relates to a disc brake for a rail vehicle, comprising a brake pad (1) and a brake disc (D) on which the brake pad (1) acts; the brake pad (1) comprises a bottom plate (2) and a plurality of friction elements (4) fixed on the bottom plate (2); the friction element (4) comprises a first friction element (4b) made of a first material and a second friction element (4a) made of a second material; the disc brake is characterized in that the compression modulus of the second material (the pressure required to compress the material by 1 mm) is smaller than the compression modulus of the first material by a value of 5MPa or more; the number of the first friction elements (4b) is greater than the number of the second friction elements (4 a).

Description

Disk brake for rail vehicles
Cross Reference to Related Applications
This patent application claims priority from italian patent application No. 102020000028781 filed on 27/11/2020, which is incorporated herein by reference in its entirety.
Technical Field
The invention relates to a disc brake for a rail vehicle. In particular, the invention has an advantageous, but not exclusive, application in medium and low speed rail vehicles.
Background
It is well known that disc brakes are subjected to large stresses and that in order to obtain an optimum braking effect, the braking force must be transmitted well from the brake linings to the brake disc.
For some time, the art has been working on brake pads that include multiple friction elements of smaller size instead of a single friction element of larger size. One solution adopted in this respect is to require that each brake pad essentially consists of a main backing plate and a plurality of friction elements fixed to the backing plate. Typically, each friction element is comprised of a metal plate and a friction insert permanently affixed to the metal plate.
The solution related to the use of a plurality of friction elements of smaller dimensions is advantageous both in terms of pressure on the brake disc and therefore efficacy of the braking, and in terms of low noise. In this respect, it should be emphasized that low noise becomes an increasingly important determinant in selecting which disc brake to use.
It is not difficult to imagine that for trains requiring a large number of stations, such as subways, regional trains or intercity trains, it is most desirable to control noise during braking.
Many solutions that lead to a reduction in braking noise suffer from the following drawbacks: the transmission of the braking force from the brake pads to the brake disc is low and therefore the efficiency of the brake itself is reduced. In fact, it is clear that trains that stop multiple times (low and medium speed trains), even if they are not at very high speed, must in any case be able to have a very high braking efficiency.
Here and below, the term "medium and low speed train" means a train having a maximum speed per hour of 220 km/h.
Another particularly important requirement in connection with brakes employed on multi-stop trains is to reduce pollution in terms of fine dust generated during braking. In fact, the trains considered above repeatedly pass and stop in areas with high population density, such as residential areas.
In general, solutions that lead to a reduction in braking noise have the disadvantage of requiring a large release of fine powder.
Disclosure of Invention
Therefore, there is a need to provide a disc brake for medium and low speed trains, which is technically characterized by ensuring low noise during braking without thereby entailing drawbacks in terms of braking efficiency and in terms of fines generated.
The inventors of the present invention have provided a solution relating to a brake pad for a disc brake of a medium-low speed train, wherein the simultaneous presence of friction elements made of materials with different compression moduli according to specific conditions ensures that the above requirements are met in a surprising manner.
Subject matter of the invention
The subject of the invention is a disc brake for rail vehicles, comprising a brake lining and a brake disc on which the brake lining acts. The brake block comprises a bottom plate and a plurality of friction elements fixed on the bottom plate; the friction elements include a first friction element made of a first material and a second friction element made of a second material; the disc brake is characterized in that the compression modulus of the second material (the pressure required to compress the material by 1 mm) is less than the compression modulus of the first material by a value of more than 5Mpa, preferably less than 10 Mpa; the number of the first friction elements is greater than the number of the second friction elements.
It was confirmed that the reduction of noise is already significant when the compression modulus differs by 5 MPa. When the compression modulus exceeds 10MPa, the reduction of noise is more remarkable.
Preferably, said friction elements are arranged in arcuate rows and overlap, in use, respective concentric lines of a brake disc on which the brake pads act; each arcuate row includes the first friction element and the second friction element.
Preferably, in each arcuate row, the number of first friction elements is equal to or greater than the number of second friction elements.
Preferably, the first material has a compressive modulus between 20MPa and 40MPa and the second material has a compressive modulus between 2MPa and 15 MPa.
Preferably, the first material is a sintered material and the second material is an organic material.
Preferably, the composition of the sintered material is: 10 to 70 weight percent copper, 5 to 40 weight percent iron, 5 to 20 weight percent graphite, 1 to 10 weight percent friction modifier.
Preferably, the composition of the organic material is: 5 to 30 wt.% of rubber and resin, 10 to 50 wt.% of filler, 5 to 20 wt.% of graphite, 5 to 20 wt.% of friction modifier.
Drawings
For a better understanding of the invention with the help of the enclosed drawings, the following includes an embodiment by way of non-limiting example only, in which:
FIG. 1 is a top plan view of a brake pad that is the subject of the present invention, with transparent portions for clarity;
FIG. 2 is a top view of a comparative brake pad, with transparent portions for clarity;
FIG. 3 is a graph recording the variation of noise results with speed associated with the pad of FIG. 1;
FIG. 4 is a graph recording noise results as a function of velocity associated with the brake pad of FIG. 2;
FIG. 5 is a graph recording the results of the friction aspect of the brake pad of FIGS. 1 and 2.
Detailed Description
In fig. 3, the reference numeral 1 designates as a whole a brake pad for a disc brake according to the invention.
The brake pad 1 includes: a base plate 2; a dovetail connection 3 attached to the rear surface of the base plate 2 and responsible for attaching the brake pad 1 itself to the structure of the disc brake; and a plurality of friction elements 4 attached to the base plate 2 and arranged to apply pressure to the brake disc to perform a braking action.
For the purposes of the present invention, it is not critical that the friction element 4 be temporarily or permanently attached to the plate 2.
The friction elements 4 are arranged along arcuate rows, shown in broken lines and indicated with reference numeral 5, which, in use, substantially overlap concentric lines of the brake disc D on which the brake pads 1 act. For simplicity, the brake disc D is shown in dashed lines and only partially.
The friction element 4 is divided into: five friction elements 4b made of sintered material and three friction elements 4a made of organic material. For the sake of clarity, the friction element made of organic material 4a is represented by a dashed surface.
The organic material of the friction element 4a has a composition satisfying the following conditions: 5 to 30 wt% of rubber and resin, 10 to 50 wt% of filler, 5 to 20 wt% of graphite, and 5 to 20 wt% of friction modifier.
The organic material has a compressive modulus of 7 MPa.
The sintered material of the friction element 4b has a composition that satisfies the following condition: 10 to 70 weight percent copper, 5 to 40 weight percent iron, 5 to 20 weight percent graphite, 1 to 10 weight percent friction modifier.
The sintered material had a compressive modulus of 27 MPa.
For measuring the compression modulus, a cylindrical test piece having a diameter of 11.3mm and a height of 10mm was taken in a direction perpendicular to the friction surface. In this way, a cylinder having a diameter of 100mm is obtained2Of (2) is provided. The above test specimen was placed under the test head of a traction/compression machine (model Galdabini QUASAR 100) and an increasing force was applied at a speed of 7.45 daN/s. The compression modulus is calculated in MPa by normalizing the compression curve detected on the basis of a plurality of important points of the curve itself. The value thus obtained relating to the compression of 1mm is then divided by the area of the cylindrical sample (100 mm)2). Contrary to the above, the first material and the second material may both be sintered materials or both be organic materials as long as they comply with the conditions of compressive modulus contained in the claimed range.
Not only can materials with different compression moduli be obtained from materials with different chemical properties, but also materials with different compression moduli can be obtained through different preparation processes for materials of the same chemical type.
For example, by changing the porosity of the resulting material, its compressibility can be changed.
In fig. 2, reference numeral 11 generally indicates a brake pad for a disc brake according to a comparative example.
The same parts of the second brake pad 11 as the first brake pad 1 will be denoted by the same reference numerals and will not be described again.
The second brake pad 11 is different from the first brake pad 1 in that all the friction elements 4 are friction elements 4b made of a sintered material.
The noise measurements of the first brake pad 1 and the second brake pad 11 during braking were carried out according to the procedure specified in the UIC 541-3No.5b (7 th edition) standard and the friction test was carried out according to the procedure specified in the standard UIC 541-3No.5b (7 th edition).
Figures 3 and 4 include graphs relating to noise tests performed on the brake pad 1 and the brake pad 11 respectively.
In each figure there are different curves, which are associated with different operating conditions, which are associated with the force (pressure) of the brake pads on the brake disc.
Of course, in the graphs of fig. 3 and 4, curves represented in the same manner are produced under the same applied force conditions.
In each graph there is an allowable line which indicates that up to 100 db of brake noise is allowed at a speed of 80km/h, and up to 90 db of brake noise is allowed below 60km/h (a train may be in a station).
It is clear from fig. 3 and 4 how the brake pad that is the subject of the invention (the graph in fig. 3) generates noise that is always below the tolerance line. In contrast, under most operating conditions, the comparative brake pad (FIG. 4 pattern) produced noise higher than that indicated by the allowable line at speeds below 60 km/h.
Fig. 5 graphically contains the friction values recorded on the inventive brake pad (INV.) in fig. 1 and the comparative brake pad (CONF.) in fig. 2 under different operating conditions (brake pad force and speed on the disc).
It is immediately clear from the graph of figure 5 that, despite the lower compression modulus of some of the friction elements, the brake pad of the present invention surprisingly ensures the same performance in terms of friction as the comparative brake pad. This result makes it possible to reduce noise without affecting the braking effect.
Furthermore, the presence of the majority of the friction elements made of a material with a higher compression modulus ensures less fines due to the friction applied during the braking action.
In summary, the present invention relates to a brake pad for a disc brake, in which the presence of friction elements made of materials with different compression moduli enables to surprisingly reduce the noise generated during braking (comparison between fig. 3 and 4), without consequently having the drawbacks linked to low braking efficiency (fig. 5) and high production of fine powders.

Claims (8)

1. Disc brake for a rail vehicle, comprising a brake pad (1) and a brake disc (D), on which brake disc (D) the brake pad (1) acts; the brake pad (1) comprises a bottom plate (2) and a plurality of friction elements (4) fixed on the bottom plate (2); the friction element (4) comprises a first friction element (4b) made of a first material and a second friction element (4a) made of a second material; the disc brake is characterized in that the compression modulus of the second material is smaller than that of the first material by a value of 5MPa or more, wherein the compression modulus is a pressure required for compressing the material by 1 mm; the number of the first friction elements (4b) is greater than the number of the second friction elements (4 a).
2. The disc brake for railway vehicles of claim 1, characterized in that the compression modulus of the second material is smaller than the compression modulus of the first material by a value of 10MPa or more.
3. Disc brake for railway vehicles according to claim 1, characterized in that the friction elements (4) are arranged in arched rows (5) and overlap, in use, the respective concentric lines of the brake disc (D) on which the brake pads (1) act; each arched row (5) comprises the first friction element (4b) and the second friction element (4 a).
4. Disc brake for railway vehicles according to claim 3, characterized in that in each arched row (5) the number of first friction elements (4b) is equal to or greater than the number of second friction elements (4 a).
5. The disc brake for railway vehicles according to claim 1, characterized in that said first material has a compression modulus between 20 and 40MPa and said second material has a compression modulus between 2 and 15 MPa.
6. The disc brake for railway vehicle according to claim 1, wherein the first material is a sintered material, and the second material is an organic material.
7. Disc brake for railway vehicles according to claim 6, characterized in that the composition of the sintered material is: 10 to 70 weight percent copper, 5 to 40 weight percent iron, 5 to 20 weight percent graphite, 1 to 10 weight percent friction modifier.
8. Disc brake for railway vehicles according to claim 6, characterized in that the composition of the organic material is: 5 to 30 wt.% of rubber and resin, 10 to 50 wt.% of filler, 5 to 20 wt.% of graphite, 5 to 20 wt.% of friction modifier.
CN202111413264.6A 2020-11-27 2021-11-25 Disk brake for rail vehicles Pending CN114562529A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000028781 2020-11-27
IT102020000028781A IT202000028781A1 (en) 2020-11-27 2020-11-27 DISC BRAKE FOR RAILWAY VEHICLES

Publications (1)

Publication Number Publication Date
CN114562529A true CN114562529A (en) 2022-05-31

Family

ID=74592538

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111413264.6A Pending CN114562529A (en) 2020-11-27 2021-11-25 Disk brake for rail vehicles

Country Status (8)

Country Link
US (1) US20220170523A1 (en)
EP (1) EP4006373B1 (en)
KR (1) KR20220074800A (en)
CN (1) CN114562529A (en)
ES (1) ES2940090T3 (en)
FI (1) FI4006373T3 (en)
IT (1) IT202000028781A1 (en)
PT (1) PT4006373T (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117847118A (en) * 2022-10-06 2024-04-09 科弗伦有限公司 Disc brake for railway vehicles

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US2713923A (en) * 1952-12-08 1955-07-26 Budd Co Brake shoe lining for de-icing brake surfaces
US3297117A (en) * 1965-04-30 1967-01-10 Budd Co Conformable rotary disk brake shoe assembly
US4278153A (en) * 1978-11-24 1981-07-14 Goodyear Aerospace Corporation Brake friction material with reinforcement material
FR2681925B1 (en) * 1991-10-01 1997-09-05 Flertex Sa DISC BRAKE PAD FOR RAILWAY.
ITRM20050005A1 (en) * 2005-01-10 2006-07-11 Rutgers Rail S P A IMPROVED DISC BRAKE SHOE, WITH FRICTION ELEMENTS, IN PARTICULAR FOR RAILWAY USE.
DE102007000276A1 (en) * 2006-05-18 2007-11-22 Advics Co., Ltd., Kariya Hybrid brake pads for disc brakes
IT1396994B1 (en) * 2009-11-05 2012-12-20 Cofren Srl IMPROVED SHOE FOR DISC BRAKES FOR RAILWAY AND INDUSTRIAL VEHICLES.
JP5333205B2 (en) * 2009-12-28 2013-11-06 新日鐵住金株式会社 Brake lining for railway vehicles
CN102174946B (en) * 2011-03-17 2012-07-11 北京浦然铁路制动科技有限责任公司 Brake pad of railway vehicle brake device
DE102012012876A1 (en) * 2012-06-06 2013-12-12 Becorit Gmbh Modular brake pad system and brake pad
ITRM20120542A1 (en) * 2012-11-07 2014-05-08 Cofren Srl SHOE FOR DISC BRAKES FOR RAILWAY VEHICLES
DE102014119491A1 (en) * 2014-12-23 2016-06-23 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Brake lining for a partially lined disc brake, arrangement of a brake pad on a pad holder and method for actuating a brake pad supported on a pad holder
CN105909704B (en) * 2016-01-31 2018-07-13 摩擦一号制动科技（仙桃）有限公司 A kind of composite brake sheet of fine heat radiation property
DE102018216268A1 (en) * 2017-09-29 2019-04-04 Robert Bosch Gmbh ADDITIVELY MANUFACTURED BRAKE LINE ARRANGEMENT WITH CONTROLLED COMPRESSIBILITY FACTOR
IT201900006094A1 (en) * 2019-04-18 2020-10-18 Cofren Srl PAD FOR DISC BRAKES FOR RAILWAY VEHICLES

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Publication number Publication date
EP4006373A1 (en) 2022-06-01
EP4006373B1 (en) 2023-01-11
US20220170523A1 (en) 2022-06-02
FI4006373T3 (en) 2023-04-06
PT4006373T (en) 2023-04-04
KR20220074800A (en) 2022-06-03
IT202000028781A1 (en) 2022-05-27
ES2940090T3 (en) 2023-05-03

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